71942780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5647}}^1$

素因数の和:5683

約数の個数: 72

約数和(自身を含む): 189298368

約数和(自身を除く): 117355588

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 5647, 6370, 11294, 12740, 22588, 28235, 39529, 56470, 73411, 79058, 112940, 146822, 158116, 197645, 276703, 293644, 367055, 395290, 513877, 553406, 734110, 790580, 1027754, 1106812, 1383515, 1468220, 2055508, 2569385, 2767030, 3597139, 5138770, 5534060, 7194278, 10277540, 14388556, 17985695, 35971390, 71942780]

約数ペア:

[(1, 71942780), (2, 35971390), (4, 17985695), (5, 14388556), (7, 10277540), (10, 7194278), (13, 5534060), (14, 5138770), (20, 3597139), (26, 2767030), (28, 2569385), (35, 2055508), (49, 1468220), (52, 1383515), (65, 1106812), (70, 1027754), (91, 790580), (98, 734110), (130, 553406), (140, 513877), (182, 395290), (196, 367055), (245, 293644), (260, 276703), (364, 197645), (455, 158116), (490, 146822), (637, 112940), (910, 79058), (980, 73411), (1274, 56470), (1820, 39529), (2548, 28235), (3185, 22588), (5647, 12740), (6370, 11294)]